Ok basically what the title ask. There are so many note taking apps available and also the good old notepad, but, how do you take notes? What do you actually take-keep notes on? Is it like complicated things or simple ones?
All time times that I started using an app or a pen and paper intended up just using a simple reminder for things. Others I just remember.
Besides Obsidian which someone else suggested, there’s also https://silverbullet.md/ which is an open source self-hosted plain text note taking app, it’s a PWA so if you expose it via https you can “install” it in your Android.